Fiat Kobelco EX355 Tier2, Техническое руководство

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EX355 W3-2-29
TRAVEL DEVICE
Assemble Brake Valve
• Reducing Valve
1. Insert spring ( 21 ) and spool ( 20 ) into casing ( 3 ),
and tighten plug ( 18 ) with O-ring ( 19 ) to casing
( 3 ).
: 8 mm
: 69 N m (7 kgf m, 51 lbf ft)
• Parking Brake Relief Valve
(Cross Section C-C)
IMPORTANT - Before inserting ball ( 14) , put ball ( 14 )
on seat ( 15 ) and tap on the ball with a hammer to obtain
tight fitting between ball ( 14 ) and seat ( 15 ). Also, after
inserting ball ( 14 ) and before tightening seat ( 15 ),
insert a metal bar into the plug hole to apply its end to
ball (
14 ), then tap the other end of the bar to obtain tight
fitting between ball ( 14 ) and casing ( 3 ).
2. Tilt casing ( 3 ) and insert ball ( 14 ). Apply
LOCTITE 262 to seat ( 15 ) and tighten it to
casing ( 3 ).
: 5 mm
: 14.5 N m (1.5 kgf m, 11 lbf ft)
3. Install O-ring ( 16 ) to plug ( 17 ), then install it to
casing ( 3 ).
: 6 mm
: 34 N m (3.5 kgf m, 25 lbf ft)
• Servo Piston Operating Shuttle Valve
(Cross Section B-B)
5. Install O-ring ( 16 ) to plug ( 17 ), then install it to
casing ( 3 ).
: 6 mm
: 34 N m (3.5 kgf m, 25 lbf ft)
• Check Valve
6. Insert poppet ( 7 ) with spring ( 6 ) into casing ( 3 ),
and tighten plug ( 4 ) with O-ring ( 5 ) to casing ( 3 ).
: 12 mm
: 235 N m (24 kgf m, 175 lbf ft)
• Overload Relief Valve
7. Install overload relief valve ( 2 ) to casing ( 3 ).
: 27 mm
: 540 N m (55 kgf m, 400 lbf ft)
• Counterbalance Valve
8. Insert spool ( 13 ) into casing ( 3 ).
9. Install spring ( 10 ) to stopper ( 12 ), then insert it
into casing ( 3 ).
10.Install O-ring ( 9 ) to plug ( 8 ), then install to
casing ( 3 ).
: 41 mm
: 340 N m (35 kgf m, 250 lbf ft)
IMPORTANT - Be sure to fill the travel device with
hydraulic oil after installing it.
IMPORTANT - After inserting poppet ( 7 ), insert a
metal bar into the plug hole to poppet ( 7 ), then tap the
other end of the bar to obtain tight fitting between
poppet (
7 ) and casing ( 3 ).
IMPORTANT - Apply film of hydraulic oil to spool ( 13 ).
Be sure that spool ( 13 ) moves smonthly.
IMPORTANT - Before inserting ball ( 14 ), put ball ( 14 )
on seat ( 15 ) and tap on the ball with a hammer to obtain
tight fitting between ball ( 14 ) and seat ( 15 ). Also, after
inserting ball ( 14 ) and before tightening seat ( 15 ),
insert a metal bar into the plug hole to apply its end to
ball (
14 ), then tap the other end of the bar to obtain tight
fitting between ball ( 14 ) and casing ( 3 ).
4. Tilt casing ( 3 ) and insert ball ( 14 ). Apply
LOCTITE 262 to seat ( 15 ) and tighten it to
casing ( 3 ).
: 5 mm
: 14.5 N m (1.5 kgf m, 11 lbf ft)